Owner's manual

AFL-xxA-N270 Series Panel PC
Page 74
 LBA/Large Mode [Auto]
Use the LBA/Large Mode option to disable or enable BIOS to auto detects LBA (Logical
Block Addressing). LBA is a method of addressing data on a disk drive. In LBA mode, the
maximum drive capacity is 137 GB.

Disabled
BIOS is prevented from using the LBA mode control on
the specified channel.

Auto DEFAULT
BIOS auto detects the LBA mode control on the specified
channel.
 Block (Multi Sector Transfer) [Auto]
Use the Block (Multi Sector Transfer) to disable or enable BIOS to auto detect if the
device supports multi-sector transfers.

Disabled
BIOS is prevented from using Multi-Sector Transfer on the
specified channel. The data to and from the device occurs
one sector at a time.

Auto DEFAULT
BIOS auto detects Multi-Sector Transfer support on the
drive on the specified channel. If supported the data
transfer to and from the device occurs multiple sectors at
a time.
 PIO Mode [Auto]
Use the PIO Mode option to select the IDE PIO (Programmable I/O) mode program timing
cycles between the IDE drive and the programmable IDE controller. As the PIO mode
increases, the cycle time decreases.

Auto DEFAULT
BIOS auto detects the PIO mode. Use this value if the IDE disk
drive support cannot be determined.

0
PIO mode 0 selected with a maximum transfer rate of 3.3MBps

1
PIO mode 1 selected with a maximum transfer rate of 5.2MBps

2
PIO mode 2 selected with a maximum transfer rate of 8.3MBps